A PUMP HAS ITS NPSHA DEFINED. IT IS DECIDED TO USE THE SAME PUMP WITH A DIFFERENT LIQUID.
THE TWO FACTORS THAT WOULD AFFECT THE NPSHA WOULD BE THE NEW VAPOR PRESSURE AND THE NEW SP GR.
IS THERE A RULE OF THUMB TO EVALUATE THE NPSHA WITHOUT HAVING TO DO MORE DETAILED CALCULATIONS?
THANK YOU...
hello i have a question regarding this figure
take fluid with k = 1.30 and a compression ratio of 9 go x direction and meet curve which is about 72% isentropic efficiency following the curved path and 72% polytropic efficiency
if we take the straight vertical lines we would read about 64%...
green to green is easy on the cable the remaining two are black and white on the female connector one of the screw is silverish, the other is a little yellowish
where does the black go, and where the white?
i have seen similar questions in other forums
one answer said put this on the hot...
ASSUME API PLAN 76 pumps. FOR MOST CASES, WHAT SHOULD BE THE SETTING OF THE P I T IN THE FLUSH LINE?
THANK YOU
Aamir
also could you plese tell me hot to contact the MVPs of our forums
i AM NOT CLEAR ABOUT THE SPECIAL PARAGRAPHS OF API 684 LIKE SP------
WHAT IS THEIR SIGNIFICANCE THEY ARE GIVEN RIGHT AT THE END AND ALSO IN BETWEEN ARE THEY INDICATING THE MORE CRITICAL ASPECTS OF API 684 REALLY WHAT ARE THEY? OR WHAT ARE THEY NOT?
IF YOU ARE CLEAR ABOUT THE ANSWER...
COULD YOU HELP WITH A CHEMICAL ENGINEERING PROBLEM
1. GASEOUS FLOW
2. AS OPERATING PRESSURE RISES, GAS DENSITY INCREASES CORRECT?
3. PRESSURE DROP IS DIRECTLY PROPORTIONAL TO SQUARE OF MASS VELOCITY ?
4. INVERSELY PROPORTIONAL TO DENSITY ?
PLEASE BRIEFLY OUTLINE YOUR REASONING...
Hello! This subject is a little specialized so if in this forum there is not a specialist in this area, could you please guide me to the correct forum thank you
Briefly, could you tell me the difference between the above four diagrams
thank you very much
Your assistance is appreciated
the usual specification for dryness of instrument air at dryer exit is a pressure dew point of - 40 F. Take the pressure at this location to be 100 psig.
Question is what variables would need to be adjusted:
first, to give this value - 40 F at 100 psig
second...
Reading about gas turbines for both power generation as well as say drivers for LNG compressors, the words SHAFT and SPOOL are botH used. Are these synonymous and if they are, why use different terminology?
Thanks
Could you indicate how to manually calculate expander HP for vapor service, and liquid service. I think several of you would have done these calculations, but if there is one or more which was verified by actual use, that would be a big help, too
Thank you
Could you indicate how to manually calculate expander hp for vapor service and liquid service? I think several of you would have done these calculations, but if there is one or more which was verified by actual use, that would be a big help, too
thank you
could you indicate how to manually calculate expander hp for vapor service and liquid service i think several of you would have done these calculations, but if there is one or more which was verified by actual use, that would be a big help, too
thank you
Personally, I have not had an opportunity to work on an expander, some other turbomachinery yes so some experienced information would be very welcome
1. I understand that there are both gas and liquid expanders in fact (gas + liquid) also is this correct?
2. How would you determine...
WHY IS A CONDITION OF PRESSURE DEWPOINT OF -40 F CONSIDERED BETTER THAN 30 F FOR AN INSTRUMENT AIR DRYER?
WHY CAN ONE TYPE OF DRYER MEET THE FIRST CONDITION AND A SECOND TYPE CANNOT?
THANK YOU
Hi! The subject is liquid ring pump/compressors:
1. Pumps and compressors have both been used with liquid ring design. Does this mean there are liquid ring pumps and liquid ring compressors?
2. If so, can they be identified from outside e.g. this is a pump, this is a compressor?
3. Usually...
i have installed a new switch and holder in my room lamp can you tell me what reasonably priced device can I buy which would help determine any leakage
i wanted to guard against that somebody might touch any part by which he/she could get an electric shock
is it more important to check for...
say there is a 12 inches dia impeller installed in a pump there will be a system curve and the operating point will be the intersection of these two
now, say we replace the larger impeller with a smaller impeller, will the original system curve also change or remain the same?
thank you
IS IT CORRECT TO SAY THAT A FRAME OR LAND TYPE GAS TURBINE WILL BE SINGLE SHAFT, WHEREAS AN AERO-DERIVATIVE WOULD ALWAYS BE TWO SHAFT?
ANY RELATED COMMENTS?
THANK YOU
